CN202564529U - Resonant rod and cavity filter - Google Patents
Resonant rod and cavity filter Download PDFInfo
- Publication number
- CN202564529U CN202564529U CN 201120573334 CN201120573334U CN202564529U CN 202564529 U CN202564529 U CN 202564529U CN 201120573334 CN201120573334 CN 201120573334 CN 201120573334 U CN201120573334 U CN 201120573334U CN 202564529 U CN202564529 U CN 202564529U
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- China
- Prior art keywords
- resonant rod
- boss
- projection
- cavity
- resonant
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Abstract
The utility model discloses a resonant rod and a cavity filter. The resonant rod comprises a hollow barrel, wherein the top of the barrel is an open end, while the bottom thereof is depressed inwards to form a lug boss; and a through hole is formed on the lug boss. As the inward depressed lug bos, which can be sleeved to a resonant mounting column, is formed at the bottom of the resonant rod through drawing, the fitting area of the resonant rod and the resonant mounting column is increased, positioning in mounting is more accurate, and the resonant rod is not easy to become loose after being mounted; and the assembly accuracy of the resonant rod and the resonant rod mounting column can be improved; as a result, a radio frequency adjustment index is increased and the integrated performance of the cavity filter is improved.
Description
Technical field
The utility model relates to communication equipment field, is specifically related to a kind of resonant rod and cavity body filter.
Background technology
In research and practice process to prior art, the utility model people of the utility model find to stretch resonant rod when assembling is the aperture that relies on the bottom drawing of stretching resonant rod to be cooperated near one section polished rod of head with trip bolt and locatees.But because the trip bolt accuracy of manufacture is lower; Make that polished rod section diameter dimensional discrepancy is bigger; And the time have the polished rod partial-length not enough, cause between the aperture of threaded portion and stretching resonant rod to cooperate area little, thereby it is not accurate to cause the resonant rod assembling afterwards to locate; And then cause rf data deviation to occur, influence the debugging index of product.Existing resonant rod and cavity body filter are as depicted in figs. 1 and 2.
Can know that to sum up existing resonant rod and cavity body filter obviously exist inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
In order to solve the problem that exists in the prior art; The utility model provides a kind of resonant rod and cavity body filter; It can increase between resonant rod and the resonant rod erection column and cooperates area; Improve the assembly precision of resonant rod and resonant rod erection column, thereby improve radio frequency debugging index, promote the product overall performance.
To achieve these goals, the utility model provides a kind of resonant rod, is used for cavity body filter, and said resonant rod comprises hollow cylinder, and said cylindrical shell top is an openend, the said cylindrical shell bottom formation boss that caves inward, and said boss is provided with through hole.
According to the resonant rod of the utility model, said cylindrical shell top has the flange face of outside turnover.
According to the resonant rod of the utility model, the projection that said cavity body filter comprises cavity and is positioned at said cavity bottom surface, the boss of said resonant rod is sheathed on said projection, and the periphery precision-fit of the inner headed face of said boss and said projection.
According to the resonant rod of the utility model, said projection is axially arranged with screwed hole, and said resonant rod is anchored on the said projection through the screw that is arranged in said through hole and said screwed hole.
According to the resonant rod of the utility model, the axial length of said boss is less than or equal to the axial length of said projection.
The utility model also provides a kind of cavity body filter, the resonant rod that comprises cavity and be positioned at said cavity, and said resonant rod comprises hollow cylinder, said cylindrical shell top is an openend, the said cylindrical shell bottom formation boss that caves inward, said boss is provided with through hole.
According to the cavity body filter of the utility model, said cylindrical shell top has the flange face of outside turnover.
According to the cavity body filter of the utility model, the projection that said cavity body filter comprises cavity and is positioned at said cavity bottom surface, the boss of said resonant rod is sheathed on said projection, and the periphery precision-fit of the inner headed face of said boss and said projection.
According to the cavity body filter of the utility model, said projection is axially arranged with screwed hole, and said resonant rod is anchored on the said projection through the screw that is arranged in said through hole and said screwed hole.
According to the cavity body filter of the utility model, the axial length of said boss is less than or equal to the axial length of said projection.
The utility model stretches through the bottom at resonant rod and forms the boss that caves inward; This boss can be sheathed on the resonant rod erection column, thereby increases the area that cooperates of resonant rod and resonant rod erection column, locatees more accurate during installation; End back resonant rod is installed to be difficult for loosening; Can improve the assembly precision of resonant rod and resonant rod erection column, thereby improve radio frequency debugging index, promote the overall performance of cavity body filter.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cutaway view of resonant rod in the prior art;
Fig. 2 is the cutaway view of cavity body filter in the prior art;
Fig. 3 is the cutaway view of a kind of embodiment of the utility model cavity body filter;
Fig. 4 is the cutaway view of a kind of embodiment of the utility model resonant rod.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 3 and shown in Figure 4, a kind of cavity body filter 100 of the utility model, the resonant rod 20 that comprises cavity 10 and be positioned at cavity 10.
As shown in Figure 4, resonant rod 20 comprises hollow cylinder 21, and cylindrical shell 21 tops are openend, and cylindrical shell 21 tops have the flange face 22 of outside turnover; Cylindrical shell 21 bottoms cave inward and form boss 23, and boss 23 is provided with through hole 24.These boss 23 preferred employings stretch and form.
With reference to Fig. 3; The boss 23 of resonant rod 20 is sheathed on projection 11; And the periphery precision-fit of the inner headed face of boss 23 and projection 11, and a screw 30 be arranged on through hole 24 and the projection 11 of boss 23 screwed hole, resonant rod 20 is anchored on the projection 11 through screw 30.When resonant rod was installed, at first the boss 23 with resonant rod 20 was sheathed on the projection 11, again screw 30 was passed through hole 24 and locked with the screwed hole of projection 11.Boss 23 is sheathed on the projection 11; Increased the cooperate area of resonant rod 20 with the resonant rod erection column; The location is more accurate during installation, and it is difficult loosening that end back resonant rod 20 is installed, and improves the assembly precision of resonant rod 20 and resonant rod erection column; Thereby improve radio frequency debugging index, promote the overall performance of cavity body filter.
Preferably, the axial length of boss 23 is less than or equal to the axial length of projection 11.Generally speaking, the axial length of boss 23 equals the axial length of projection 11, so that boss 23 can entangle projection 11 fully; But the axial length of boss 23 is littler than the axial length of projection 11, though boss 23 can not all entangle projection 11 fully, can reach the purpose that cooperates area that increases resonant rod 20 and projection 11 equally, and resonant rod 20 is anchored on the projection 11.
The utility model is corresponding to provide a kind of resonant rod, is used for cavity body filter, and resonant rod comprises hollow cylinder, and said cylindrical shell top is an openend, the cylindrical shell bottom formation boss that caves inward, and said boss is provided with through hole.The concrete structure of resonant rod is done detailed description at preamble, so repeat no more at this.
In sum, the utility model stretches through the bottom at resonant rod and forms the boss that caves inward, and this boss can be sheathed on the resonant rod erection column; Thereby increase the area that cooperates of resonant rod and resonant rod erection column; The location is more accurate during installation, and it is difficult loosening that end back resonant rod is installed, and can improve the assembly precision of resonant rod and resonant rod erection column; Thereby improve radio frequency debugging index, promote the overall performance of cavity body filter.
Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (8)
1. a resonant rod is used for cavity body filter, it is characterized in that, said resonant rod comprises hollow cylinder, and said cylindrical shell top is an openend, the said cylindrical shell bottom formation boss that caves inward, and said boss is provided with through hole.
2. resonant rod according to claim 1 is characterized in that, said cylindrical shell top has the flange face of outside turnover.
3. resonant rod according to claim 1 and 2; It is characterized in that; The projection that said cavity body filter comprises cavity and is positioned at said cavity bottom surface, the boss of said resonant rod is sheathed on said projection, and the periphery precision-fit of the inner headed face of said boss and said projection.
4. resonant rod according to claim 3 is characterized in that said projection is axially arranged with screwed hole, and said resonant rod is anchored on the said projection through the screw that is arranged in said through hole and said screwed hole.
5. resonant rod according to claim 3 is characterized in that, the axial length of said boss is less than or equal to the axial length of said projection.
6. a cavity body filter is characterized in that, the resonant rod that comprises cavity and be positioned at said cavity, and said resonant rod comprises hollow cylinder, said cylindrical shell top is an openend, the said cylindrical shell bottom formation boss that caves inward, said boss is provided with through hole.
7. cavity body filter according to claim 6 is characterized in that, said cylindrical shell top has the flange face of outside turnover.
8. according to claim 6 or 7 described cavity body filters; It is characterized in that; The projection that said cavity body filter comprises cavity and is positioned at said cavity bottom surface, the boss of said resonant rod is sheathed on said projection, and the periphery precision-fit of the inner headed face of said boss and said projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120573334 CN202564529U (en) | 2011-12-30 | 2011-12-30 | Resonant rod and cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120573334 CN202564529U (en) | 2011-12-30 | 2011-12-30 | Resonant rod and cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564529U true CN202564529U (en) | 2012-11-28 |
Family
ID=47214151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120573334 Expired - Fee Related CN202564529U (en) | 2011-12-30 | 2011-12-30 | Resonant rod and cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
| CN115275556A (en) * | 2022-08-17 | 2022-11-01 | 昆山立讯射频科技有限公司 | Resonance rod and radio frequency filter |
-
2011
- 2011-12-30 CN CN 201120573334 patent/CN202564529U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
| CN107615579B (en) * | 2015-05-20 | 2020-02-21 | 华为技术有限公司 | Filter and electromagnetic device |
| CN115275556A (en) * | 2022-08-17 | 2022-11-01 | 昆山立讯射频科技有限公司 | Resonance rod and radio frequency filter |
| TWI831476B (en) * | 2022-08-17 | 2024-02-01 | 大陸商昆山立訊射頻科技有限公司 | Resonant rod and radio frequency wave filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20161230 |